US2023318026A1PendingUtilityA1

Method for manufacturing positive electrode material

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Assignee: HONDA MOTOR CO LTDPriority: Mar 31, 2022Filed: Mar 14, 2023Published: Oct 5, 2023
Est. expiryMar 31, 2042(~15.7 yrs left)· nominal 20-yr term from priority
Inventors:Yui KinoshitaSatoshi AokiMakoto TanakaRio Koyama
H01M 10/0562H01M 4/624H01M 2300/0071H01M 2004/028Y02E60/10H01M 10/0525H01M 2004/021H01M 4/1391H01M 2300/0068H01M 4/0404H01M 4/505H01M 4/131H01M 4/366H01M 4/525H01M 10/052H01M 4/364H01M 4/62H01M 4/139H01M 4/13H01M 10/058
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Claims

Abstract

A method for manufacturing a positive electrode material of a solid-state battery, the method includes a first compositing to mix a positive electrode active material with a solid electrolyte to generate a first powder, and a second compositing to mix the solid electrolyte with the first powder under a stirring condition different from a stirring condition in the first compositing to generate a second powder. According to the method, it is possible to reduce the amount of a dispersion medium when generating a slurry in manufacturing the positive electrode material.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 . A method for manufacturing a positive electrode material of a solid-state battery, the method comprising:
 a first compositing to mix a positive electrode active material with a solid electrolyte to generate a first powder; and   a second compositing to mix the solid electrolyte with the first powder under a stirring condition different from a stirring condition in the first compositing to generate a second powder.   
     
     
         2 . The method for manufacturing a positive electrode material according to  claim 1 , wherein
 the second compositing has a stirring speed slower than a stirring speed in the first compositing.   
     
     
         3 . The method for manufacturing a positive electrode material according to  claim 1 , wherein
 the second compositing has a shear force smaller than a shear force in the first compositing.   
     
     
         4 . The method for manufacturing a positive electrode material according to  claim 2 , wherein
 the second compositing has a stirring time shorter than a stirring time in the first compositing.   
     
     
         5 . The method for manufacturing a positive electrode material according to  claim 1 , wherein
 the positive electrode active material is coated with another solid electrolyte different from the solid electrolyte.   
     
     
         6 . The method for manufacturing a positive electrode material according to  claim 5 , wherein
 the solid electrolyte is a sulfide-based solid electrolyte, and   the another solid electrolyte is an oxide-based solid electrolyte.   
     
     
         7 . The method for manufacturing a positive electrode material according to  claim 1 , further comprising:
 a slurry generating to mix the second powder with an auxiliary dispersion medium containing a conductive aid.

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